Published March 2007 | Version v1
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Study of ageing effect of long-term storage fuel in prototype fast breeder reactor Monju

Creators

  • 1. Japan Atomic Energy Agency, Tsuruga Head Office, Fast Breeder Reactor Research and Development Center, Tsuruga, Fukui (Japan)
  • 2. Japan Atomic Energy Agency, Nuclear Fuel Cycle Engineering Laboratories, Tokai, Ibaraki (Japan)
  • 3. Japan Atomic Energy Agency, Oarai Research and Development Center, Oarai, Ibaraki (Japan)

Description

In order to resume the System Startup Test (SST) of Monju, replacement fuel have to be loaded in exchange for some of initial fuel now loaded in the core to compensate core reactivity lost by decay of Pu-241 in them. The replacement fuel were being stored either in sodium in an ex-vessel storage tank or in air in a storage rack for about 10 years since their fabrication. The initial fuel were irradiated during the SST which was suspended in the end of 1995 and then stayed being loaded in the sodium-circulated core. As this long-term storage and loading may deteriorate mechanical integrity of the assemblies, a study has been made thoroughly on its thermal-hydraulic, structural and material effects on them that major be caused by irradiation in the core, sodium and mechanical environment. The study has shown that the mechanical integrity of them is well maintained even with this long-term storage and loading. (author)

Availability note (English)

Available from JAEA; DOI: https://doi.org/10.11484/jaea-research-2007-019

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Additional details

Identifiers

DOI
10.11484/jaea-research-2007-019;

Publishing Information

Imprint Pagination
65 p.
Report number
JAEA-Research--2007-019

INIS

Country of Publication
Japan
Country of Input or Organization
Japan
INIS RN
39021843
Subject category
S21: SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS;
Descriptors DEI
AGING; AMERICIUM 241; DECAY; FUEL ASSEMBLIES; FUEL INTEGRITY; FUEL-CLADDING INTERACTIONS; MECHANICAL PROPERTIES; MONJU REACTOR; PLUTONIUM 241; START-UP; STORAGE
Descriptors DEC
ACTINIDE NUCLEI; ALPHA DECAY RADIOISOTOPES; AMERICIUM ISOTOPES; BETA DECAY RADIOISOTOPES; BETA-MINUS DECAY RADIOISOTOPES; BREEDER REACTORS; EPITHERMAL REACTORS; EVEN-ODD NUCLEI; FAST REACTORS; FBR TYPE REACTORS; HEAVY NUCLEI; ISOTOPES; LIQUID METAL COOLED REACTORS; LMFBR TYPE REACTORS; NUCLEI; ODD-EVEN NUCLEI; PLUTONIUM ISOTOPES; POWER REACTORS; RADIOISOTOPES; REACTORS; SODIUM COOLED REACTORS; SPONTANEOUS FISSION RADIOISOTOPES; YEARS LIVING RADIOISOTOPES

Optional Information

Notes
9 refs., 31 figs., 7 tabs.